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(19)

(11)

2 281 278

(13)

(51)

IPC

C07C21/20(2006-01-01)

C07C17/23(2006-01-01)

(21) (22)

Application

2005103266/04, 2005-02-08

(24)

Start date

2005-02-08

(22)

Actual filing date

2005-02-08

(45)

Published

2006-08-10

(72)

Inventor

Ponomarev Vladimir GeorgievichRimarenko Vladimir StepanovichTiunov Aleksej Vasil'Evich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

METHOD FOR PREPARING HEXAFLUOROBUT-1,3-DIENE Russian patent published in 2006 - IPC C07C21/20 C07C17/23

Abstract RU 2281278 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of perfluorinated olefins, in particular, to synthesis of hexafluoro-1,3-diene. Method is carried out by the dehalogenation reaction of 1,2,3,4-tetrachlorohexafluorobutane with zinc. The dehalogenation reaction is carried out in water in the presence of copper salts and mineral acids. Invention provides a simple and fireproof method for synthesis of hexafluoro-1,3-diene.

EFFECT: improved method of synthesis.

1 tbl, 4 ex

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RU 2 281 278 C1

Authors

Ponomarev Vladimir Georgievich

Rimarenko Vladimir Stepanovich

Tiunov Aleksej Vasil'Evich

Dates

2006-08-10—Published

2005-02-08—Filed